The main criteria for distinguishing climate change from weather change are

Climate change and weather change both involve changes in the atmospheric system, but they are essentially different. Climate change is a long-term and global climate pattern change, while weather change is a short-term and local climate phenomenon. This article will focus on the difference between climate change and weather change.

First of all, the time scales of climate change and weather change are different. Climate change is usually a long-term change from ten years to hundreds of years, usually caused by large-scale changes in the climate system. Weather changes are short-term climatic phenomena such as hours, days and weeks, which are usually caused by changes in the local atmospheric system. For example, the winter temperature in a certain area has been decreasing for decades, which is a manifestation of climate change; A sudden increase in rainfall on a certain day is a manifestation of weather change.

Secondly, the spatial scales of climate change and weather change are also different. Climate change is usually global, involving changes in the entire earth's climate system. For example, global temperature rise and sea level rise are all manifestations of climate change. The weather change is local, usually only involving the climate phenomenon in a certain area. For example, the temperature and rainfall in a city are all manifestations of weather changes.

Third, climate change and weather change have different effects. The impact of climate change is global, involving global ecosystem, human health and many other aspects. For example, sea level rise caused by global temperature rise and the increase of extreme weather events will have a great impact on human living environment. The influence of weather change is mainly local, usually only involving the ecosystem and human health in a certain area.

Finally, the causes of climate change and weather change are also different. Climate change is usually caused by natural factors and human activities. For example, natural factors such as solar radiation, ocean circulation and human activities such as human emission of greenhouse gases will affect climate change. Weather changes are usually caused by changes in the atmospheric system, such as high pressure, low pressure, cold front, warm front and so on.

To sum up, the main criteria of climate change and weather change are the differences in time scale, spatial scale, influence degree and causes. Understanding these differences will help us better understand the relationship between climate change and weather change, and their impact on human living environment.